fork
vfork
clone
execve
waitpid
wait4
kill
setuid
setreuid
setfsuid
getuid
geteuid
setregid
getgid
setgid
setresuid
setregid
getegid
getppid
kill
signal
sigaction
sigprocmask
sigpending
sigsuspend
sigaltstack
pause
chdir
fchdir
chroot
setrlimit
getrusage
reboot
mount
umount
